Jeans are among the world's most popular clothes, and Japanese denim has a great reputation. Harnessing craft traditions, manual dexterity, and the latest technology, makers of Japanese jeans offer a subtle spectrum of blue dyes, a broad variety of textures, and excellent techniques to customize the way jeans look. Our expert guest, Shinsaku Sugiya, the vice president of Shujitsu University, is the author of a book about Japanese jeans. And in Plus One, getting an old pair of jeans revamped.